Religion

There are only 5 references to the word "religion" in the Bible for the NIV

1. Acts 25:19
   Instead, they had some points of dispute with him about their own religion and about a dead man named Jesus who Paul claimed was alive.
   
   
2. Acts 26:5
   They have known me for a long time and can testify, if they are willing, that according to the strictest sect of our religion, I lived as a Pharisee.
   
   
3. 1 Timothy 5:4
   But if a widow has children or grandchildren, these should learn first of all to put their religion into practice by caring for their own family and so repaying their parents and grandparents, for this is pleasing to God.
   
   
4. James 1:26
   If anyone considers himself religious and yet does not keep a tight rein on his tongue, he deceives himself and his religion is worthless.
   
   
5. James 1:27
   Religion that God our Father accepts as pure and faultless is this: to look after orphans and widows in their distress and to keep oneself from being polluted by the world.
   
   

...and five for the KJV.

1. Acts 26:5
   Which knew me from the beginning, if they would testify, that after the most straitest sect of our religion I lived a Pharisee.
   
   
2. Galatians 1:13
   For ye have heard of my conversation in time past in the Jews' religion, how that beyond measure I persecuted the church of God, and wasted it:
   
   
3. Galatians 1:14
   And profited in the Jews' religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers.
   
   
4. James 1:26
   If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
   
   
5. James 1:27
   Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspotted from the world.
   
   

Most have negative connotations.

And for the word "religious," there are 6 references for the NIV

1. Amos 5:21
   "I hate, I despise your religious feasts; I cannot stand your assemblies.
   
   
2. Amos 8:10
   I will turn your religious feasts into mourning and all your singing into weeping. I will make all of you wear sackcloth and shave your heads. I will make that time like mourning for an only son and the end of it like a bitter day.
   
   
3. Acts 17:22
   Paul then stood up in the meeting of the Areopagus and said: "Men of Athens! I see that in every way you are very religious.
   
   
4. Colossians 2:16
   Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day.
   
   
5. Hebrews 10:11
   Day after day every priest stands and performs his religious duties; again and again he offers the same sacrifices, which can never take away sins.
   
   
6. James 1:26
   If anyone considers himself religious and yet does not keep a tight rein on his tongue, he deceives himself and his religion is worthless.
   
   

...and 2 for the KJV.

1. Acts 13:43
   Now when the congregation was broken up, many of the Jews and religious proselytes followed Paul and Barnabas: who, speaking to them, persuaded them to continue in the grace of God.
   
   
2. James 1:26
   If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
   
   

Most have negative connotations as well.